Analytical reagents

Reagent Analytical fonn of metals Composition of water-organics phase Organic phase Tiiax. (nmj ... 

Some luminol derivatives have been developed as CL labeling reagents. Analytes prelabeled with luminol derivatives are separated by HPLC, mixed with postcolumn reagents such as hydrogen peroxide and an alkaline solution of potassium hexacyanoferrate (III), and then detected by a CL detector. Highly sensitive determination is possible by optimizing the conditions to increase the CL reaction efficiency for each analyte. 

Reagent Analyte and form precipitated Analyte form weighed... 

JACQLIEMART S REAGENT. Analytical reagent used to test Ibr ethyl alcohol. Consists of an aqueous solution of mercuric nitrate and nitric acid, See also Ethyl Alcohol,... 

Adolor Corporation currently possesses a 300-member custom TFP reagent kit that continues to increase in number. Focused libraries are produced in as little as 2-3 days by derivatizing an amine with a subset of the reagents. Analytical data are collected on all the members of the library. Focused libraries find utility in SAR exploration and patent protection.2 For larger library campaigns, which require 3-4 weeks to complete,... 

Type of sample Determinand Dry ash acid digestion reagent Analytical finish Reference... 

REAGENT ANALYTE AND FORM PRECIPITATED ANALYTE FORM WEIGHED... 

Appendices (reagents, analytical techniques, etc), IR spectra, Index BP (Vet)... 

ACS (American Chemical Society specifications) reagent (analytical reagent quality)... 

We forecast, therefore, that improvements in the quality of standard materials, reagents, analytical methods, instrumentation, data-processing techniques, and control programs will individually and collectively con-... 

Also the use of an EWOD system for the automated sample preparation of peptides and proteins for matrix-assisted laser desorption-ionization mass spectrometry (MALDI-MS) was reported. In that work, standard MALDI-MS reagents, analytes, concentrations, and recipes have been demonstrated to be compatible with the EWOD technology, and mass spectra comparable to those collected by conventional methods were obtained [271]. Also a PCR assay has been realized on the platform by temperature cycling of a droplet at rest [272]. Additional informations about the EWOD platform can be found in a comprehensive review [273]. 

The summary of purification is shown in Table II (16). The purified enzyme has a molecular weight of —40,000 on SDS-polyacrylamide gel electrophoresis irrespective of either the presence or absence of SH reagents. Analytical gel filtration with Sephadex G-lOO indicated that the native enzyme is a monomeric protein with a molecular weight of —40,000. The turnover number (101 nmol-min -mol" of enzyme) of the purified enzyme toward L-tryptophan was almost the same as that of the rabbit enzyme under the standard assay conditions described above. 

Once obtained from the sample and reagent, analytical information must be translated into chemical information (qualitative and quantitative data). For simplification, amounts of species are characterized by Pj and measuring signals by x,. 

Reagents, analytical well characterized, high not always completely... 

FIGURE 19.5 HPLC-fluorescence analysis of the extract of N. navis-varingica isolated from Bulacan estuary (a) and of the culture medium spiked with DA (59 ng/mL) (b). 1 unknown peak, 2 unknown peak, a Lack of DA peak, b Side products of the FMOC-Cl reagent Pocklington et al. (1990) c Reaction products derived from contaminants in the medium and other compounds in the culture (e.g., neutral amino acids) that react with FMOC-Cl reagent. Analytical conditions Column Develosil ODS-5 (Nomura, 4.6 mm x 250 mm), Mobile phase 40% acetonitrile in 20 mM phosphate buffer (pH 2.5), Column temperature 55°C, Flow rate 1 mL/min, Fluorescent detection Ex. 264, Em. 313 nm. 

Sodium perchlorate monohydrate Sodium m-periodate Sodium sulfide Sodium thiocyanate Sodium thioglycolate Stannous chloride anhydrous Sulfur chloride Sulfurous acid Thiodiqlycolic acid Thiourea Thymolphthalein Zinc oxide Zinc sulfate reagent, analytical chemistry Ammonium acetate Copper oxide (ic) Cupric sulfate anhydrous Ferric nitrate nonahydrate Furfural... 

Salicylic acid Sodium molybdate anhydrous Sodium molybdate dIhydrate Sodium phosphate dibasic anhydrous Sulfanilic acid Tannic acid Thallium (I) sulfate reagent, analytical alcohol identification... 

D Ulivo A, Loreti V, Onor M, Pitzalis E, and Zamboni R (2003) Chemical vapor generation atomic spectrometry using amineboranes and cyanotrihydroborate(III) reagents. Analytical Chemistry 75 2591-2600. 

Reagent Analytes Reaction conditions Fluorescent product... 

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